CN211446006U - Oil drying device that oils of heterocyclic aramid fiber - Google Patents
Oil drying device that oils of heterocyclic aramid fiber Download PDFInfo
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- CN211446006U CN211446006U CN201922380314.XU CN201922380314U CN211446006U CN 211446006 U CN211446006 U CN 211446006U CN 201922380314 U CN201922380314 U CN 201922380314U CN 211446006 U CN211446006 U CN 211446006U
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Abstract
The utility model discloses an oiling and drying device for heterocyclic aramid fibers, which comprises an oiling mechanism and a drying mechanism beside the oiling mechanism; the mechanism that oils includes oil tank, oil pump, defeated oil pipe, oil groove, seal wire ware and oil wiper, and the oil pump passes through defeated oil pipe and connects oil tank and oil groove, and seal wire ware and oil wiper all are provided with a plurality ofly, are located oil groove both sides and one-to-one respectively. The utility model provides an oiling drying device, device simple structure, the investment is little, and the finish passes through the oil pump transport of the mechanism inside that oils and gets into the oil groove of upper end, and the multifilament oils through the oil groove simultaneously, has improved the cohesion of heterocyclic aramid fiber tow, has improved the fibrous quality of aramid fiber heterocycle and production efficiency; the method for simultaneously treating the continuous tows in the drying mechanism has the advantages of low temperature control of the drying box, no carbonization and decomposition of the oiling agent, low production cost and low investment, and has important significance for the development of the high-performance organic fiber manufacturing industry.
Description
Technical Field
The utility model relates to a high performance organic fiber makes technical field, especially relates to a heterocyclic aramid fiber's drying device that oils.
Background
The heterocyclic aramid (aramid III fiber) is para-aramid with aromatic heterocyclic rings on the main chain, and the typical aromatic heterocyclic ring is a benzimidazole ring. According to theoretical calculation, the tensile strength of the fiber formed by ternary condensation polymerization of p-phenylenediamine, terephthaloyl chloride and benzimidazole diamine can reach 4.5-5.5 GPa. And has high thermal stability, and the decomposition temperature of the wholly aromatic polyamide fiber can reach 550 ℃. The aramid fiber reinforced resin matrix composite material has a wide application range and plays an important role in a plurality of fields such as aerospace, military bullets, sports equipment, automobiles, buildings and the like.
However, the heterocyclic aramid fiber needs to obtain higher mechanical properties, and the diameter and the larger stretching ratio of the monofilaments in the bundle fiber must be controlled in the spinning preparation process, so that the orientation degree and the regularity of a large molecular chain are increased. Although the performance of the finished fiber is excellent, the bundle fiber is rough in surface state and has the defects of cutting, entanglement and even breakage in the process of processing into fabrics in the later period.
In the existing production process, in order to prevent the surface of the bundle yarn from being rough and reduce the external tension of the broken yarn, an antistatic agent is generally added on the surface of the raw yarn, so that the cohesive force of the bundle yarn is increased and the spinning abrasion is reduced. However, in practice, since the antistatic agent is carbonized and decomposed after the precursor is subjected to a high-temperature heat treatment (typically, a heat treatment at 400 ℃), the reduction of the fiber filaments is insignificant and impurities after carbonization and decomposition are present in the obtained fiber product. When the fabric is processed into a fabric at a later stage, the surface strength of the fabric is not ideal, the conversion rate of the strength is not high, and impurities attached to the surface have certain influence when the fabric is combined with resin to prepare a composite material.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a heterocyclic aramid fiber's drying device that oils improves its finished product fibrous silk bundle surface state to loss when reducing the later stage and processing into the fabric.
In order to realize the above purpose, the utility model discloses a technical scheme:
an oiling and drying device for heterocyclic aramid fibers comprises an oiling mechanism and a drying mechanism beside the oiling mechanism; the mechanism that oils includes oil tank, oil pump, defeated oil pipe, oil groove, seal wire ware and oil wiper, the oil pump passes through defeated oil pipe and connects oil tank and oil groove, seal wire ware and oil wiper all are provided with a plurality ofly, are located oil groove both sides and one-to-one respectively.
Further, the drying mechanism comprises a drying box, a heating pipeline, an inert gas inlet pipe and a drain pipe; the heating pipeline is provided with a plurality of parallel transverse devices in the drying box, the inlet of the heating pipeline is connected with the oil scraper, the inert gas inlet pipe is communicated into the heating pipeline, one end of the drain pipe is communicated into the heating pipeline, and the other end of the drain pipe penetrates out of the bottom wall of the drying box.
Further, an insulating layer is arranged on the outer wall of the drying oven, the length of a heating area in the heating pipeline is 5-10cm, and the inner diameter of the heating pipeline is 20-100 mm.
Further, the oiling mechanism further comprises a supporting box body and a supporting plate located at the top end of the supporting box body, the oil pump is located in the supporting box body, and the oil groove, the wire guide and the oil scraper are installed on the supporting plate.
Further, the oil agent in the oil tank comprises an antistatic diluent special for aramid fiber, polyvinyl alcohol diluent or epoxy resin.
Based on above-mentioned drying device that oils, the utility model also provides a heterocyclic aramid fiber technology, including following step:
preparing a heterocyclic aramid fiber polymerization solution;
defoaming the prepared heterocyclic aramid fiber polymerization solution;
feeding the heterocyclic aramid fiber polymer solution subjected to defoaming treatment into a spinning process to obtain a finished heterocyclic aramid fiber yarn;
carrying out surface oiling treatment on a plurality of bundles of heterocyclic aramid fiber finished yarns on an oiling mechanism of an oiling drying device to obtain heterocyclic aramid fiber oiling yarns;
and drying the oiling filaments of the plurality of bundles of heterocyclic aramid fibers in a drying mechanism of the oiling and drying device to obtain the heterocyclic aramid fibers.
Further, the spinning process comprises coagulation bath, plasticating stretching, water washing, drying and heat treatment.
Further, the dynamic viscosity of the heterocyclic aramid fiber polymerization liquid is 50000-150000 Pa.s.
Further, the speed of the oiling mechanism is 5-10 m/min.
Further, the heterocyclic aramid fiber raw tow in each heating pipeline of the drying mechanism is 1 tow, the linear density of the heterocyclic aramid fiber raw tow is 220dtex-1500dtex, and the drying temperature of the drying mechanism is 90-110 ℃.
The utility model has the advantages that:
the utility model provides a drying device oils, device simple structure, the investment is little, and the oil agent carries the oil groove that gets into the upper end through the inside oil pump of mechanism that oils, and the multi beam silk oils through the oil groove simultaneously, has improved the cohesion nature of heterocycle aramid fiber tow silk, has improved the fibrous quality of aramid fiber and production efficiency.
The utility model provides an oiling drying device adopts the method of many silk bundles continuity simultaneous processing in drying mechanism, for more than general drying temperature 140 ℃, the utility model discloses a drying cabinet temperature control is low, can not cause finish carbonization and decomposition, low in production cost, and the investment is little, has important meaning to the development of high performance organic fiber manufacturing industry.
The utility model provides a heterocyclic aramid fiber technology, equipment investment cost is low, and equipment cost expense can be realized within only 10 ten thousand yuan, and energy resource consumption is low, and fiber quality stability is high, and the fibre finished product qualification rate is high, the weaving loss is little, and wherein equipment investment cost is low and energy resource consumption is low to the development of high performance organic fiber manufacturing industry has important meaning.
Drawings
Fig. 1 is a schematic view of the oiling and drying device of the present invention;
FIG. 2 is a schematic view of the spinning process of the present invention;
in the figure: 1. an oiling mechanism; 11. an oil tank; 12. an oil pump; 13. an oil delivery pipe; 14. an oil sump; 15. a thread guide; 16. an oil wiper; 17. supporting the box body; 18. a support plate; 2. a drying mechanism; 21. a drying oven; 22. heating the pipeline; 23. an inert gas inlet pipe; 24. and a water discharge pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further explained with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
An oiling and drying device for heterocyclic aramid fibers is shown in figure 1 and comprises an oiling mechanism 1 and a drying mechanism 2 beside the oiling mechanism 1;
The drying mechanism 2 comprises a drying box 21, a heating pipeline 22, an inert gas inlet pipe 23 and a water outlet pipe 24; the heating pipeline 22 is provided with a plurality of parallel horizontal drying boxes 21, the inlet of the heating pipeline 22 is connected with the oil scraper 16, the inert gas inlet pipe 23 is communicated into the heating pipeline 22, one end of the drain pipe 24 is communicated into the heating pipeline 22, and the other end of the drain pipe penetrates out of the bottom wall of the drying boxes 21.
The drying mechanism 2 is used for drying the oil filaments on the heterocyclic aramid fibers, and the drying aims to reduce the moisture content of the precursor filaments and prevent degradation. Wherein, drying cabinet 21 is drying mechanism 2's major structure, it is used for heating to have many heating tube 22 in it, heating tube 22 is preferably electric heating tube, inert gas intake pipe 23 is used for inert gas's entering, inert gas is preferably nitrogen gas, nitrogen gas gets into and is heated in heating tube 22, nitrogen gas after the heating circulates at heating tube 22, to the oily silk thermal treatment of heterocyclic aramid fiber, it is even to be heated in heating tube 22 to make the oily silk of heterocyclic aramid fiber, the moisture of the oily silk thermal treatment of heterocyclic aramid fiber, then discharge from drain pipe 24. The method for simultaneously treating the continuous tows in the drying mechanism is adopted, and the electric heating pipeline is adopted for heating, so that the temperature control of the drying box is low, the carbonization and decomposition of the oiling agent cannot be caused, the production cost is low, and the equipment investment is small.
As an optimized scheme of the embodiment, an insulating layer is arranged on the outer wall of the drying box 21 to insulate the heating pipeline 22; the length of a heating zone in the heating pipeline 22 is 5-10cm, the inner diameter of the heating pipeline 22 is 20-100mm, and the length and the inner diameter of the heating zone are proper, so that the multi-beam heterocyclic aramid fiber is conveniently dried, the external expansion state of the tows and the broken filaments of the tows is reduced, and the cohesion of the tows is improved.
As a preferred embodiment, as shown in fig. 1, the oiling mechanism 1 further includes a supporting case 17 and a supporting plate 18 located at the top end of the supporting case 17, the oil pump 12 is located in the supporting case 17, and the oil groove 14, the thread guide 15 and the oil scraper 16 are mounted on the supporting plate 18.
As an optimized scheme of this embodiment, the oil agent in the oil tank 11 includes an antistatic diluent special for aramid fiber, a polyvinyl alcohol diluent, or an epoxy resin.
For better understanding, the utility model discloses, following is to the theory of operation of the utility model make a complete description:
in the oiling mechanism 1, an oil pump 12 delivers the oil in an oil tank 11 to an oil tank 14 through an oil delivery pipe 13. And a plurality of bundles of heterocyclic aramid fiber finished yarns enter the oil groove 14 through the yarn guide 15 for oiling, are discharged from the oil groove 14 and then are scraped through the oil scraper 16, then enter the heating pipeline 22 of the drying mechanism 2 for drying, and finally are discharged from the drying mechanism 2.
In drying mechanism 2, nitrogen gas gets into heating tube 22 through inert gas intake pipe 23 in, is heated the back circulation, makes the heterocyclic aramid fiber oiling silk be heated dry in heating tube 22, and the heterocyclic aramid fiber oiling silk moisture after the thermal treatment then discharges from drain pipe 24.
Example 2
A heterocyclic aramid fiber process comprises the following steps:
s1, preparing a heterocyclic aramid fiber polymerization solution with dynamic viscosity of 80000 Pa.s;
s2, defoaming the prepared heterocyclic aramid fiber polymerization solution;
s3, feeding the degassed heterocyclic aramid fiber polymer solution into a spinning process, and setting the spinning process to carry out 4-station 1000dtex linear density type fiber production with the spinning speed of 10 m/min; then spinning 4 bundles of heterocyclic aramid fibers according to the spinning process flow shown in figure 2 to obtain finished heterocyclic aramid fiber yarns;
s4, performing surface oiling treatment on the 4 bundles of the finished heterocyclic aramid fiber yarns on an oiling mechanism of the oiling and drying device in the embodiment 1, wherein the oiling agent is special antistatic diluent for aramid fibers, and obtaining the finished heterocyclic aramid fiber yarns;
and S5, oiling 4 bundles of heterocyclic aramid fibers, and drying in a drying mechanism of the oiling and drying device in the embodiment 1 at the drying temperature of 110 ℃ to obtain the heterocyclic aramid fibers.
After the performance test is carried out on the 4 coiled product fiber, weaving is carried out, and the surface strength is tested, and the data are shown in table 1:
table 1 example 2 test data
| Sample numbering | Linear density of | Strength of | Effect of broken filament | Rate of loss in weaving |
| 20191023-1 | 999dtex | 4.18GPa | Is free of | 17.5％ |
| 20191023-2 | 1012dtex | 4.22GPa | Is free of | 18.4％ |
| 20191023-3 | 1008dtex | 4.21GPa | Is free of | 20.1％ |
| 20191023-4 | 997dtex | 4.19GPa | Is free of | 18.9％ |
Example 3
A heterocyclic aramid fiber process comprises the following steps:
s1, preparing a heterocyclic aramid fiber polymer solution with dynamic viscosity of 98000 Pa.s;
s2, defoaming the prepared heterocyclic aramid fiber polymerization solution;
s3, feeding the degassed heterocyclic aramid fiber polymer solution into a spinning process, and setting the spinning process to carry out 4-station 500dtex linear density type fiber production, wherein the spinning speed is 10 m/min; then spinning 4 bundles of heterocyclic aramid fibers according to the spinning process flow shown in figure 2 to obtain finished heterocyclic aramid fiber yarns;
s4, performing surface oiling treatment on the 4 bundles of the finished heterocyclic aramid fiber yarns on an oiling mechanism of the oiling and drying device in the embodiment 1, wherein the oiling agent is polyvinyl alcohol diluent to obtain the oiled heterocyclic aramid fiber yarns;
and S5, oiling 4 bundles of heterocyclic aramid fibers, and drying in a drying mechanism of the oiling and drying device in the embodiment 1 at the drying temperature of 100 ℃ to obtain the heterocyclic aramid fibers.
After the performance test is carried out on the 4 coiled product fiber, weaving is carried out, and the surface strength is tested, and the data are shown in a table 2:
table 2 example 3 test data
| Sample numbering | Linear density of | Strength of | Effect of broken filament | Rate of loss in weaving |
| 20191024-1 | 499dtex | 4.22GPa | Is free of | 20.0％ |
| 20191024-2 | 503dtex | 4.27GPa | Is free of | 19.7％ |
| 20191024-3 | 505dtex | 4.29GPa | Is free of | 18.9％ |
| 20191024-4 | 501dtex | 4.25GPa | Is free of | 19.6％ |
Example 4
A heterocyclic aramid fiber process comprises the following steps:
s1, preparing a heterocyclic aramid fiber polymerization solution with dynamic viscosity of 105000 Pa.s;
s2, defoaming the prepared heterocyclic aramid fiber polymerization solution;
s3, feeding the heterocyclic aramid fiber polymer solution after the defoaming treatment into a spinning process, and setting the spinning process to carry out 4-station 230dtex linear density type fiber production, wherein the spinning speed is 10 m/min; then spinning 4 bundles of heterocyclic aramid fibers according to the spinning process flow shown in figure 2 to obtain finished heterocyclic aramid fiber yarns;
s4, performing surface oiling treatment on the 4 bundles of the finished heterocyclic aramid fiber yarns on an oiling mechanism of the oiling and drying device in the embodiment 1, wherein the oiling agent is 918 epoxy resin to obtain the finished heterocyclic aramid fiber yarns;
and S5, oiling 4 bundles of heterocyclic aramid fibers, and drying in a drying mechanism of the oiling and drying device in the embodiment 1 at the drying temperature of 110 ℃ to obtain the heterocyclic aramid fibers.
After the performance test is carried out on the 4 coiled product fiber, weaving is carried out, and the surface strength is tested, and the data are shown in a table 3:
table 3 example 4 test data
| Sample numbering | Linear density of | Strength of | Effect of broken filament | Rate of loss in weaving |
| 20191027-1 | 226dtex | 4.31GPa | Is free of | 19.5％ |
| 20191027-2 | 228dtex | 4.30GPa | Is free of | 18.8％ |
| 20191027-3 | 228dtex | 4.29GPa | Is free of | 18.7％ |
As can be seen from the data in tables 1 to 3, the oil application process of the heterocyclic aramid fiber of the utility model has the advantages of uniform oil application and stable and controllable fiber linear density. And the fiber strength is more than 4.0Gpa, so that the original performance of the product is ensured. The weaving loss is less than 20 percent and is far lower than the 30 to 40 percent fabric loss rate of other methods used in China at present. Has important significance for the development of the high-performance organic fiber manufacturing industry.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An oiling and drying device for heterocyclic aramid fibers is characterized by comprising an oiling mechanism (1) and a drying mechanism (2) beside the oiling mechanism (1);
oiling mechanism (1) includes oil tank (11), oil pump (12), defeated oil pipe (13), oil groove (14), thread guide (15) and oil wiper (16), oil pump (12) are connected through defeated oil pipe (13) oil tank (11) and oil groove (14), thread guide (15) and oil wiper (16) all are provided with a plurality ofly, are located oil groove (14) both sides and one-to-one respectively.
2. The oiling and drying device according to claim 1, wherein the drying mechanism (2) comprises a drying box (21), a heating pipeline (22), an inert gas inlet pipe (23) and a drain pipe (24);
the heating pipeline (22) is provided with a plurality of parallel transverse devices arranged in the drying box (21), an inlet of the heating pipeline (22) is connected with the oil scraper (16), the inert gas inlet pipe (23) is communicated into the heating pipeline (22), one end of the drain pipe (24) is communicated into the heating pipeline (22), and the other end of the drain pipe penetrates out of the bottom wall of the drying box (21).
3. The oiling and drying device according to claim 2, wherein the outer wall of the drying box (21) is provided with an insulating layer, the length of the heating zone in the heating pipeline (22) is 5-10cm, and the inner diameter of the heating pipeline (22) is 20-100 mm.
4. The oiling and drying device according to claim 1, wherein the oiling mechanism (1) further comprises a supporting box (17) and a supporting plate (18) located at the top end of the supporting box (17), the oil pump (12) is located in the supporting box (17), and the oil bath (14), the wire guide (15) and the oil scraper (16) are mounted on the supporting plate (18).
5. Oiling and drying device according to claim 1, characterized in that the oil agent in the oil tank (11) comprises antistatic thinner special for aramid, polyvinyl alcohol thinner or epoxy resin.
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| CN201922380314.XU CN211446006U (en) | 2019-12-26 | 2019-12-26 | Oil drying device that oils of heterocyclic aramid fiber |
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| CN201922380314.XU CN211446006U (en) | 2019-12-26 | 2019-12-26 | Oil drying device that oils of heterocyclic aramid fiber |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A kind of oiling and drying device for heterocyclic aramid fiber Effective date of registration: 20220901 Granted publication date: 20200908 Pledgee: Sichuan Fushun Rural Commercial Bank Co.,Ltd. Pledgor: SICHUAN HUITENG TECHNOLOGY Co.,Ltd. Registration number: Y2022980014202 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |